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# -*- coding: binary -*-
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module Rex
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module Proto
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module NTP::Constants
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  VERSIONS = (0..7).to_a
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  MODES = (0..7).to_a
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  MODE_6_OPERATIONS = (0..31).to_a
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  MODE_7_IMPLEMENTATIONS = (0..255).to_a
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  MODE_7_REQUEST_CODES = (0..255).to_a
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  module Mode
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    # see: https://datatracker.ietf.org/doc/html/rfc5905#section-3
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    SYMMETRIC_ACTIVE = 1
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    SYMMETRIC_PASSIVE = 2
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    CLIENT = 3
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    SERVER = 4
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    BROADCAST_SERVER = 5
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    BROADCAST_CLIENT = 6
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    def self.name(value)
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      constants.select { |c| c.upcase == c }.find { |c| const_get(c) == value }
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    end
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  end
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end
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end
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end
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